On the temperature dependence of positron lifetimes in tin and the transition from theβ- to theα-phase |
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| Authors: | W Puff P Mascher P Kindl H Sormann |
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| Institution: | 1. Yamaguchi-Laboratory, 2-72 Kotake-cho, Nerima-ku, 176, Tokyo, Japan
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| Abstract: | The N2, O2, H2O, and CO2 molecules that have condensed on the surface of a pyroelectric tourmaline crystal were degassed successively by means of electron bombardment. The temperature dependence of the electrostatic field strength on the specimen surface was observed by electron diffraction; it decreased as the degassing advanced. The tourmaline surface behaved as a gas Chromatographic adsorbent. |
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